The Honeymoon Killers is a 1970 American crime film written and directed by Leonard Kastle, and starring Shirley Stoler and Tony Lo Bianco. Its plot follows a sullen, overweight nurse who is seduced by a handsome con man, with whom she embarks on a murder spree of single women. The film was inspired by the true story of Raymond Fernandez and Martha Beck, the notorious "lonely hearts killers" of the 1940s.

Shirley Stoler was an American actress best known for her roles in The Honeymoon Killers and Lina Wertmüller's Seven Beauties.